Patents by Inventor Ajay Vora

Ajay Vora has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210178646
    Abstract: Improved injection molding methods and molds, for forming TPU layers, especially thin TPU covers, into golf ball constructions, and having improved number, shape and placement of both the injection gates and the cold slugs within the mold in order to minimize/eliminate damage to dimples strategically positioned close to the parting line of a mold in order to maximize aerodynamic properties of the resulting golf ball.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 17, 2021
    Applicant: Acushnet Company
    Inventors: Ajay Vora, John M. Thornton
  • Publication number: 20210094209
    Abstract: Golf ball molds and methods for molding golf balls, particularly golf balls having thermoplastic polyurethane covers, are provided. The molds and methods are particularly suitable for manufacturing covers for golf balls. Multi-piece golf balls having inner cores, outer cores, inner covers, and intermediate layers can be made. Retractable pins are used for holding the golf ball within the mold, wherein each retractable pin has a primary vent section, secondary vent section, and tertiary vent section for removing air and other gasses from the interior spherical cavity of the mold.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 1, 2021
    Applicant: Acushnet Company
    Inventors: Ajay Vora, John M. Thornton
  • Publication number: 20210093931
    Abstract: Golf ball methods and molds for quickly and efficiently eliminating air/gas from within a mold during golf ball manufacture and the improved golf balls resulting therefrom.
    Type: Application
    Filed: December 12, 2019
    Publication date: April 1, 2021
    Applicant: Acushnet Company
    Inventors: Ajay Vora, John M. Thornton
  • Publication number: 20210094210
    Abstract: Golf ball methods and molds for quickly and efficiently eliminating air/gas from within a mold while better centering a subassembly in the mold during golf ball manufacture and the improved golf balls resulting therefrom.
    Type: Application
    Filed: February 24, 2020
    Publication date: April 1, 2021
    Applicant: Acushnet Company
    Inventors: Ajay Vora, John M. Thorton, Kevin J. Rice, Donald A. Serino
  • Patent number: 10894348
    Abstract: Method of making golf ball comprising aligning thermoformed depressions with dimpled mold cups and applying sufficient heat and suction to the thermoformed depressions without exposing any preselected subassembly to the heat and suction to soften the polymeric material of each thermoformed depression and draw air outward from a volume located between an inner surface of the dimpled mold cup and an outer surface of the thermoformed depression to form a thermoformed pre-form half-shell having an outer surface with the size, shape and contour of the inner surface of the dimpled mold cup(s) and an inner surface with the size, shape and contour of the outer surface of a preselected subassembly. Afterwards, a preselected subassembly is loaded between a pair of thermoformed pre-form half-shells and molded under sufficient short-term heat and suction to form the golf ball. The thickness of each thermoformed depression and thermoformed pre-form half-shell may be tapered.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: January 19, 2021
    Assignee: Acushnet Company
    Inventor: Ajay Vora
  • Publication number: 20190381712
    Abstract: Method of making golf ball comprising aligning thermoformed depressions with dimpled mold cups and applying sufficient heat and suction to the thermoformed depressions without exposing any preselected subassembly to the heat and suction to soften the polymeric material of each thermoformed depression and draw air outward from a volume located between an inner surface of the dimpled mold cup and an outer surface of the thermoformed depression to form a thermoformed pre-form half-shell having an outer surface with the size, shape and contour of the inner surface of the dimpled mold cup(s) and an inner surface with the size, shape and contour of the outer surface of a preselected subassembly. Afterwards, a preselected subassembly is loaded between a pair of thermoformed pre-form half-shells and molded under sufficient short-term heat and suction to form the golf ball. The thickness of each thermoformed depression and thermoformed pre-form half-shell may be tapered.
    Type: Application
    Filed: June 14, 2018
    Publication date: December 19, 2019
    Applicant: Acushnet Company
    Inventor: Ajay Vora
  • Patent number: 10046210
    Abstract: Golf ball having CoR of at least 0.700 and comprising: a substantially spherical subassembly having diameter of 1.3 inches or greater and compression of from about 15-60; and a thin outer layer having a compression molded thickness of about 0.015-0.055 inches and consisting of first and second hemispherical cups consisting of a polymer composition having a melt flow index at 190° C. under a 2.16-kg load of from about 0.8 g/10 min. to about 4 g/10 min. and having a cup thickness ratio of from about 1.10 to 1.70 as well as an inner surface that is sized, shaped and contoured to receive and conformally and adhesively mate onto and about the subassembly during compression molding such that the subassembly in the finished golf ball is substantially spherical and disposed concentrically within the thin outer layer. Also, the novel hemispherical cups and the method of making the golf ball.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: August 14, 2018
    Assignee: Acushnet Company
    Inventors: Ajay Vora, Donald A. Serino
  • Publication number: 20170008205
    Abstract: The present invention is directed to a retractable pin injection mold system and method of forming a layer of a golf ball using the system. By utilizing a radial gate along with stationary vent pins in the mold, the present invention allows for injection molding of a dimpled outer or inner layer having superior physical properties and more consistent aerodynamics.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 12, 2017
    Applicant: Acushnet Company
    Inventors: Ajay Vora, Robert A. Wilson
  • Patent number: 8309002
    Abstract: A method for compression molding a thin cover layer over a large or soft core golf ball, wherein the process includes mold press speed of closure, pressure within the mold cavities, temperature of materials being molded, and the movement of the compression press is controlled by as the mold position rather than any fixed amounts of time. A Ram press is moved in a very controlled fashion during the low pressure stage by a servo controller, and is governed by data fed to a control computer by a linear potentiometer, which allows for a very deliberate movement, especially over the last 0.4 inches of closing. A pressure transducer and thermocouples determine the flow point of the cover layer. Once the cover material starts to flow, the Ram press is triggered into a high pressure close wherein the cover layer is formed and then finally cooled.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 13, 2012
    Assignee: Acushnet Company
    Inventors: Ajay Vora, Thomas L. Mydlack, Thomas E. Moore, Robert A. Wilson
  • Publication number: 20110187013
    Abstract: A method for compression molding a thin cover layer over a large or soft core golf ball, wherein the process includes mold press speed of closure, pressure within the mold cavities, temperature of materials being molded, and the movement of the compression press is controlled by as the mold position rather than any fixed amounts of time. A Ram press is moved in a very controlled fashion during the low pressure stage by a servo controller, and is governed by data fed to a control computer by a linear potentiometer, which allows for a very deliberate movement, especially over the last 0.4 inches of closing. A pressure transducer and thermocouples determine the flow point of the cover layer. Once the cover material starts to flow, the Ram press is triggered into a high pressure close wherein the cover layer is formed and then finally cooled.
    Type: Application
    Filed: April 13, 2011
    Publication date: August 4, 2011
    Inventors: Ajay Vora, Thomas L. Mydlack, Thomas E. Moore, Robert A. Wilson
  • Patent number: 7927524
    Abstract: A method for compression molding a thin cover layer over a large or soft core golf ball, wherein the process includes mold press speed of closure, pressure within the mold cavities, temperature of materials being molded, and the movement of the compression press is controlled by as the mold position rather than any fixed amounts of time. A Ram press is moved in a very controlled fashion during the low pressure stage by a servo controller, and is governed by data fed to a control computer by a linear potentiometer, which allows for a very deliberate movement, especially over the last 0.4 inches of closing. A pressure transducer and thermocouples determine the flow point of the cover layer. Once the cover material starts to flow, the Ram press is triggered into a high pressure close wherein the cover layer is formed and then finally cooled.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: April 19, 2011
    Assignee: Acushnet Company
    Inventors: Ajay Vora, Thomas L. Mydlack, Thomas E. Moore, Robert A. Wilson
  • Publication number: 20100151971
    Abstract: The present invention relates to a method for painting dimpled golf balls that are moving along an endless conveyor. The method employs paint guns operating at a relatively low atomizing air pressure, and make contact with the golf ball surface at an angle between about 5° to 60°. The paint guns are continually in the on position and the paint neither coagulates in the gun nozzle nor forms puddles in the dimple cavities. The number of golf ball painted per gallon of paint is dramatically increased as is the number of ball painted per time period.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Inventors: Thomas L. Mydlack, Ajay Vora, Robert A. Wilson
  • Publication number: 20100090370
    Abstract: A method for compression molding a thin cover layer over a large or soft core golf ball, wherein the process includes mold press speed of closure, pressure within the mold cavities, temperature of materials being molded, and the movement of the compression press is controlled by as the mold position rather than any fixed amounts of time. A Ram press is moved in a very controlled fashion during the low pressure stage by a servo controller, and is governed by data fed to a control computer by a linear potentiometer, which allows for a very deliberate movement, especially over the last 0.4 inches of closing. A pressure transducer and thermocouples determine the flow point of the cover layer. Once the cover material starts to flow, the Ram press is triggered into a high pressure close wherein the cover layer is formed and then finally cooled.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 15, 2010
    Inventors: Ajay Vora, Thomas L. Mydlack, Thomas E. Moore, Robert A. Wilson
  • Publication number: 20100003357
    Abstract: An improved mold for making a golf ball comprises a pair of mold cups which are assembled together along mating surfaces that form a parting line. The mold cups are completely without sprues (vents). A lower mold cup has an undercut section of p to 360° in the rim area of the mating surface that allows for a very restricted but controlled flow at the parting line. The undercut section is of a depth of about 0.002 inch or less. This provides for a significant increase in the shear strength that results in a golf ball having less delamination, smaller voids, and a significant increase in impact cover durability.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Inventors: Ajay Vora, Robert A. Wilson, Scott Cooper, Paul J. Valente
  • Patent number: 7520741
    Abstract: A replaceable cavity insert for use in a multi-cavity compression mold, wherein each cavity insert is friction fitted into a respective mold recess. Each insert has a substantially semi-spherical insert surface and defined in the surface is an inverted dimple pattern of a golf ball. Each cavity insert has an O-ring recessed in the upper perimeter to limit the flow of heating and cooling fluids beyond the perimeter. The cavity insert and the O-ring are retained in the recess of the frame by a pair of removable cavity retainer screws and washers, which are countersunk into the frame and have an edge of the washer disposed in a cut-out section of the insert. Each cavity insert may be separately and individually removed from the frame by just loosening the retaining screws without the need to remove the entire frame from the press or disconnecting the utility lines leading to the frame.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: April 21, 2009
    Assignee: Acushnet Company
    Inventors: Robert A. Wilson, Ajay Vora
  • Publication number: 20090039552
    Abstract: A method of molding an inner or cover layer of a thermoset or thermoplastic material around a golf ball core within a compression mold, in which the core is positioned within a mold cavity containing preformed inner hemispherical shells and holding the opposing mold portions in a closed position wherein heat and pressure are applied. Knockout pins engage the core and layer to biasly eject it from the mold cavity, while simultaneously blowing high pressure air into the mold cavity to aid in releasing the core and layer without the need of a release agent coating the cavities.
    Type: Application
    Filed: October 17, 2008
    Publication date: February 12, 2009
    Inventors: Robert A. Wilson, Michael F. Vieira, Ajay Vora
  • Publication number: 20080018020
    Abstract: A method of molding an inner or cover layer of a thermoset or thermoplastic material around a golf ball core within a compression mold, in which the core is positioned within a mold cavity containing preformed inner hemispherical shells and holding the opposing mold portions in a closed position wherein heat and pressure are applied. Knockout pins engage the core and layer to biasly eject it from the mold cavity, while simultaneously blowing high pressure air into the mold cavity to aid in releasing the core and layer without the need of a release agent coating the cavities.
    Type: Application
    Filed: July 21, 2006
    Publication date: January 24, 2008
    Inventors: Robert A. Wilson, Michael F. Vieira, Ajay Vora
  • Publication number: 20080020081
    Abstract: A replaceable cavity insert for use in a multi-cavity compression mold, wherein each cavity insert is friction fitted into a respective mold recess. Each insert has a substantially semi-spherical insert surface and defined in the surface is an inverted dimple pattern of a golf ball. Each cavity insert has an O-ring recessed in the upper perimeter to limit the flow of heating and cooling fluids beyond the perimeter. The cavity insert and the O-ring are retained in the recess of the frame by a pair of removable cavity retainer screws and washers, which are countersunk into the frame and have an edge of the washer disposed in a cut-out section of the insert. Each cavity insert may be separately and individually removed from the frame by just loosening the retaining screws without the need to remove the entire frame from the press or disconnecting the utility lines leading to the frame.
    Type: Application
    Filed: July 21, 2006
    Publication date: January 24, 2008
    Inventors: Robert A. Wilson, Ajay Vora
  • Publication number: 20050133966
    Abstract: A method of heating a golf ball component by using radio frequency waves to reduce the thermal expansion experienced by a golf ball component such as a core, core and at least one core layer or a core and a combination of core and/or intermediate layers. The component is heated prior to having a layer applied in order to reduce the dramatic temperature increase the component experiences upon an intermediate layer being applied. The preheating reduces the amount of thermal expansion the component undergoes in the casting process.
    Type: Application
    Filed: February 23, 2005
    Publication date: June 23, 2005
    Inventors: Ajay Vora, David Sauerbrey, Thomas Mydlack, Brian St. Aubin